回答編集履歴
1
修正
answer
CHANGED
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@@ -7,7 +7,6 @@
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7
7
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(
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8
8
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SELECT max(date) FROM sample_tbl
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9
9
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WHERE group = sample_tbl_2.group
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10
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-
)
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10
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) AS date
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11
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FROM
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12
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sample_tbl_2
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